CN2609759Y

CN2609759Y - Printer

Info

Publication number: CN2609759Y
Application number: CN03215082.2U
Authority: CN
Inventors: 杨民; 丛强滋
Original assignee: Shandong New Beiyang Information Technology Co Ltd
Current assignee: Shandong New Beiyang Information Technology Co Ltd
Priority date: 2003-02-15
Filing date: 2003-02-15
Publication date: 2004-04-07
Anticipated expiration: 2013-02-15

Abstract

The utility model belongs to a printer, in particular to a printer which utilizes reel-type record paper, and a detecting alarm device can remind users of changing printing paper when the record paper is going to use up. The printer of the utility model comprises a paper chamber for placing a paper roll and an accepting chamber arranged on the bottom of the paper chamber. When the paper roll is going to use up and the diameter becomes smaller, the paper roll can fall in the accepting chamber, and a detecting alarm device is arranged on the bottom of the accepting chamber. Compared with the prior art that the inching switch of the alarm device is arranged on the lateral wall of the paper chamber, the alarm device inching switch of the printer of the utility model is arranged on the bottom of the accepting chamber, and the paper roll can fall to the bottom of the accepting chamber until becoming small to some extent, which avoids the paper roll being in instable state and fore-and-aft shaking to make the inching switch act falsely when the diameter of the paper roll becomes small, and enhances dependability and accuracy of alarm.

Description

Printer

Technical field

The utility model relates to a kind of printer, especially a kind of use drum record-paper has detection, warning device, can remind the user in time to change the printer of printing paper when record-paper will use up.

Background technology

In the printer field, often adopt roll web to realize continuous paper supply and printing, convenient in order to change printing paper, roll web does not adopt with mandrel the mode that paper roll supports is used, but roll web is directly put into the paper storehouse.On January 7th, 1998, disclosed application number was 97113421.9 patent application prospectus, it discloses a kind of Detection And Warning device of printer when paper will use up that uses roll web, thereby it is by detecting the printer that middle part, space that whether detection head stretch into the core of drum record-paper detects the paper terminal of this record-paper, the detection that its paper will be use up is to rely on the mechanical pick-up device be installed in paper storehouse sidewall, and the height of surveying paper core determines to remain how much finishing of paper amount.This structure, because when paper roll diminishes, along with the carrying out of printing, the state of paper roll in the paper storehouse is very unstable, therefore is very easy to misoperation, makes detection head touch microswitch, sends wrong warning.

Summary of the invention

The purpose of this utility model provides a kind of use drum record-paper, has detection, warning device, can remind the user in time to change printing paper when record-paper will use up and can not produce the printer of the warning device of misoperation.

For achieving the above object, the utility model comprises to be placed the paper storehouse that paper roll uses and is positioned at the storehouse of accommodating that can fall into when bottom, paper storehouse, paper roll are about to use up diameter and diminish wherein, accommodates the bottom, storehouse monitoring alarm is set.

Above-mentioned paper storehouse sidewall can be provided with paper-pressing mechanism, it comprises that the platen pendulum fixed mount that the upper end connects with paper storehouse sidewall reaches and the hinged pendulum of this fixed mount, the upperpush rod and the down-pressed pole that have protrusion on the pendulum, between pendulum and the fixed mount spring is set, paper storehouse sidewall and depression bar relevant position are provided with opening, and the elastic force of spring makes depression bar stretch in the paper storehouse from this opening.

Can also a plurality of storehouses of accommodating that have monitoring alarm respectively be set in different angles in the paper storehouse, platen pendulum fixed mount and paper storehouse sidewall form hinged.

Above-mentioned detection alarm device is to be connected in microswitch on the master control borad by holding wire.

The utility model is accommodated the bottom, storehouse because the microswitch of warning device is arranged on, compare with the sidewall installation and measuring head of prior art, state labile when having stopped reel diameter and diminishing and front and back are rocked and are caused the microswitch misoperation, the possibility that makes a mistake and report to the police has improved the reliability and the accuracy of reporting to the police.

Description of drawings

Fig. 1 is the utility model embodiment paper chamber structure schematic diagram;

Fig. 2 has just put into the paper roll sectional front view for the utility model embodiment;

Fig. 3 accommodates the storehouse schematic diagram for the utility model embodiment paper roll progressively falls into;

Fig. 4 is the utility model embodiment paper-pressing mechanism structural representation.

The specific embodiment

The overall structure of the utility model embodiment as shown in Figure 1, it comprises for the paper storehouse 1 of laying paper roll; Because various printing paper width may be different, corresponding paper roll different in width position is provided with plurality of fixed groove 6 in the paper storehouse 1, limiting plate 2 can be inserted into according to the width of paper roll in that holddown groove 6 that current paper roll can be tightened, and prevents paper roll left and right sides play and inclination in paper storehouse 1.More firmly firm for the installation that makes baffle plate 2, be provided with the projection 4 of elastic rod 3 in limiting plate 2 rear ends, paper storehouse 1 front upper part is provided with corresponding locating slot 5.

As shown in Figures 2 and 3, two spigot surfaces 15 are arranged at the bottom in paper storehouse 1, spigot surface 15 extends to form downwards accommodates storehouse 12, and shape, the size of accommodating storehouse 12 should make when reel diameter diminishes the mandrel of paper roll progressively descend to fall until paper roll side face bottom accommodates 12 bottoms, storehouse; Accommodate 12 bottoms, storehouse and have aperture, the microswitch 11 of warning device stretches out from aperture, and the height of microswitch 11 can be regulated.

Actual use is as follows: the loam cake (not shown) of opening paper storehouse 1, earlier paper roll 10 being pressed close to the sidewall of paper storehouse infinite place plate 2 places, pick up limiting plate 2, certain holddown groove 6 is aimed in its underpart to be compressed into, the selection of holddown groove 6 should make paper storehouse width be slightly larger than the width of current paper roll, and meanwhile, elastic rod 3 deforms, projection 4 sticks in the locating slot 5, and paper roll just installs like this.As shown in Figure 2, paper roll 10 diameters are very big during beginning, and its underpart is dropped on two spigot surfaces 15 in paper storehouse; This moment, the printer paper supply was in normal state, and it can not touch microswitch 11.Along with constantly carrying out of printing, the diameter of paper roll 10 constantly diminishes, it will fall to entering gradually along paper storehouse spigot surface 15 accommodates storehouse 12, when the diameter of paper roll 10 little during to certain value (A shown in Figure 4), the microswitch 11 of accommodating 12 bottoms, storehouse will be touched in the bottom of paper roll 10, warning device gives a warning, and prompting user printing paper will use up.Because to accommodate storehouse 12 width and spigot surface 10 sizes suitable for reading is constant, so paper roll is definite value at each diameter (A shown in Figure 3) when touching microswitch 11 certainly, and promptly the surplus of each paper of reporting to the police is certain.Compared to prior art, reliability, the accuracy that will report to the police to the greatest extent of the utility model paper is higher.

After the warning, open paper storehouse 1 loam cake, pull elastic rod 3 on the limiting plate 2, projection 4 is deviate from from locating slot 5, upwards pull up to limiting plate 2 bottoms from holddown groove 6 and extract out, take out the mandrel of paper roll 10, by the aforementioned operation mode new paper roll is installed and is got final product with hand.

Among Fig. 3, paper roll is in 13,14 positions have been expressed paper roll 10 respectively and not to reach the warning surplus and reach two states of warning surplus; Clearly, regulate the height of microswitch 11, the warning surplus that can regulate paper roll 10.

Before microswitch 11 is touched in paper roll 10 bottoms, along with the diameter of paper roll 10 diminishes gradually, the weight of paper roll 10 lightens gradually, and the tractive force of at this moment printing paper feed can make paper roll 10 front and back in paper storehouse 1 rock, and may produce noise even affect for normal paper supply and paper feed.For alleviating above-mentioned influence, sidewall in paper storehouse 1 is provided with paper-pressing mechanism 7, as shown in Figure 4, it comprises the platen pendulum fixed mount that connects with paper storehouse 1 sidewall of upper end 17 and has a paper-pressing mechanism 7 upperpush rod 8 and down-pressed pole 9, vertical setting with this fixed mount 17 is hinged, it also has elastic force makes depression bar be adjacent to the spring 16 of paper roll 10 sidewalls, and the elastic force of spring 16 stretches in the paper storehouse 1 upperpush rod 8 corresponding opening from the paper storehouse 1.When just putting into the bigger new paper roll of diameter, upperpush rod 8 temporarily is extruded paper storehouse 1, upperpush rod 8 pushes against on the end face of paper roll 10 mandrels, when paper roll 10 side faces height topmost during less than upperpush rod 8, upperpush rod 8 at first leans out from sidewall opening under the effect of spring force, pushes down paper roll 10 and makes it stable; After paper roll 10 continued to diminish, down-pressed pole 9 leant out from sidewall gradually, extend in paper roll 10 mandrels, effectively stoped paper roll 10 front and back to be rocked; When paper roll 10 continued to fall to its side face bottom shake-up microswitch 11, down-pressed pole 9 skidded off in paper roll 10 mandrels.

Needs for different disposing ways such as satisfying the printer traverse, place vertically, in the paper storehouse 1 different angles be provided with a plurality of have monitoring alarm respectively accommodate storehouse 12, it is hinged that platen pendulum fixed mount 17 and paper storehouse 1 sidewall form, make paper-pressing mechanism 7 rotatably position application accommodate in the storehouse to each; Accommodate respectively that 12 bottoms, storehouse are provided with microswitch 11 and to accommodate storehouse 12 accordingly simultaneously selected, or only establish a microswitch 11, as required temporarily with microswitch 11 reversing of position.

Claims

1. printer, it comprises places the paper storehouse that paper roll uses and is positioned at the storehouse of accommodating that can fall into when bottom, paper storehouse, paper roll are about to use up diameter and diminish wherein, it is characterized in that accommodating the bottom, storehouse monitoring alarm is set.

2. printer according to claim 1, it is characterized in that paper storehouse sidewall is provided with paper-pressing mechanism, it comprises that the platen pendulum fixed mount that the upper end connects with paper storehouse sidewall reaches and the hinged pendulum of this fixed mount, the upperpush rod and the down-pressed pole that have protrusion on the pendulum, between pendulum and the fixed mount spring is set, paper storehouse sidewall and depression bar relevant position are provided with opening, and the elastic force of spring makes depression bar stretch in the paper storehouse from this opening.

3. printer according to claim 2 is characterized in that different angles are provided with a plurality of storehouses of accommodating that have monitoring alarm respectively in the paper storehouse, and platen pendulum fixed mount and paper storehouse sidewall form hinged.

4. according to claim 1,2 or 3 described printers, it is characterized in that described detection alarm device is to be connected in microswitch on the master control borad by holding wire.